Enhanced dual-circular polarised four-arm Archimedean spiral antenna with low-profile cavity backing

A wideband dual-circular unidirectional four-arm Archimedean spiral antenna operating from 0.6 to 2.4 GHz is presented. Without a cavity, the antenna radiates bi-directionally and the dual-circular polarisation of the spiral antenna at boresight is limited to a frequency range from 0.6 to 1.5 GHz. A...

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Veröffentlicht in:	IET microwaves, antennas & propagation antennas & propagation, 2015-09, Vol.9 (12), p.1260-1266
Hauptverfasser:	Fang, Hongzhao Ray, Serhir, Mohammed, Guinvarc'h, Régis, Mouthaan, Koen
Format:	Artikel
Sprache:	eng
Schlagworte:	antenna radiation patterns Boresights broadband antennas Circularity deep metallic cavity Electromagnetism Electronics Engineering Sciences enhanced dual‐circular polarised four‐arm Archimedean spiral antenna feed network frequency 0.6 GHz to 2.4 GHz Holes LHCP low‐profile cavity backing Microwave antennas Phase shifters power dividers RHCP Spiral antennas Switching theory Wideband wideband digital 2‐bit phase shifters wideband four‐way power divider
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